US5687815A - Apparatus for supplying lubricant alternatively to opposite sides of a lubricant dispenser metering piston - Google Patents

Apparatus for supplying lubricant alternatively to opposite sides of a lubricant dispenser metering piston Download PDF

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Publication number
US5687815A
US5687815A US08/693,135 US69313596A US5687815A US 5687815 A US5687815 A US 5687815A US 69313596 A US69313596 A US 69313596A US 5687815 A US5687815 A US 5687815A
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US
United States
Prior art keywords
spindle
turning part
lubricant
metering piston
cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US08/693,135
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English (en)
Inventor
Kari Antila
Ismo Lehtinen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SKF Oy AB
Original Assignee
Safematic Oy
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Publication date
Application filed by Safematic Oy filed Critical Safematic Oy
Assigned to SAFEMATIC OY reassignment SAFEMATIC OY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ANTILA, KARI, LEHTINEN, ISMO
Application granted granted Critical
Publication of US5687815A publication Critical patent/US5687815A/en
Assigned to JOHN CRANE SAFEMATIC OY reassignment JOHN CRANE SAFEMATIC OY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SAFEMATIC OY
Assigned to OSAKEYHTIO SKF AKTIEBOLAG reassignment OSAKEYHTIO SKF AKTIEBOLAG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: JOHN CRANE SAFEMATIC OY
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
    • G01F11/02—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement
    • G01F11/04—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the free-piston type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N25/00—Distributing equipment with or without proportioning devices
    • F16N25/04—Distributing equipment with or without proportioning devices with rotary distributing member
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86389—Programmer or timer
    • Y10T137/86405—Repeating cycle
    • Y10T137/86413—Self-cycling

Definitions

  • the invention relates to an arrangement in connection with a lubricant dispenser comprising a frame, which frame contains a metering cylinder and a metering piston moving axially therein as well as means for conducting lubricant alternately to both sides of the metering piston, the means for conducting lubricant comprising a spindle positioned in the cylinder and provided with passages remaining entirely open during the whole pressurization, the spindle being arranged to move in the cylinder so as to permit flow of lubricant in consequence of a movement of the spindle alternately either via a control valve to one side or the other of the metering piston or directly to one side or the other of the metering piston, depending on dispenser, whereby the spindle is arranged to move Only by rotating around its longitudinal symmetry axis.
  • dispensers are mounted in the vicinity of the objects of lubrication, one dispenser usually attending to two objects of lubrication.
  • the dispensers are connected with pipes to a pump feeding lubricant at intervals determined by a control center to the dispensers metering a desired quantity of lubricant and pressing that quantity of lubricant to the object to be lubricated.
  • a control valve in the dispenser conducts the lubricant metered by the metering piston to each object of lubrication alternately.
  • dispensers connectable to a pump by means of one manifold have been developed, through which the drawbacks of double piping can be removed.
  • a solution disclosed in the Finnish Patent 66 978 can be mentioned.
  • a drawback of this solution is, however, that it is not very well adapted to all lubricants. Inconveniences may occur with difficult greases, i.e. greases in which oil and soap tend to be separated from each other.
  • Another drawback is an underpressure on one side of the dispenser caused by a difference in the surface area of the control valve, for instance.
  • the object of the invention is to provide an arrangement by means of which the drawbacks of the previously known solutions can be eliminated. This has been achieved by means of the arrangement according to the invention, which is characterized in that the rotary movement of the spindle is arranged to be provided by means of a separate turning part moving back and forth and rotating influenced by lubricant pressure and spring force.
  • An advantage of the invention is primarily that the materials, hardenings, surface treatments and manufacturing method of the turning part can be selected irrespective of each other in the best possible manner, so that these parts function in the best possible manner, which means that the spindle functions in the best possible manner as a valve part and the turning part as a turning part of the spindle, respectively. This possibility of selecting provides the best possible safety in operation and the optimal economy of the production.
  • Another advantage of the invention is that the arrangement is preferably adapted to all kinds of lubricants, also the above-mentioned difficult greases. Additionally, the lubrication takes place on both sides of the dispenser at full pressure of the main pipe by controlling conventional two-pipe system dispensers.
  • a further advantage is that the arrangement of the invention is simple and quick-mounted.
  • the arrangement of the invention can be used preferably in connection with conventional dispensers intended for a two-pipe system. Then the utilization of the invention will be advantageous, it is not absolutely necessary to plan and manufacture a specific dispenser for the utilization of the invention, but dispensers manufactured and used at present can be used. By means of the invention, however, it is also possible to provide a structure replacing the traditional two-pipe system dispenser used previously. Similarly to the arrangement of the Finnish Patent Application 912 786, the invention also maintains all previously known advantages of the one-pipe system, eliminates the deficiencies and drawbacks therein and provides additionally a full pressurization on both sides of the dispenser and an adaptability to all kinds of lubricants.
  • FIGS. 1 and 2 show general sectional views of a first embodiment of an arrangement according to the invention at different stages of operation
  • FIGS. 3 to 6 show general sectional views of a second embodiment of the arrangement according to the invention at different stages of operation
  • FIG. 7 shows a general sectional view of a third embodiment of the arrangement according to the invention.
  • FIG. 8 shows a general view of an alternative implementation of a detail of a turning part of the arrangement according to the invention.
  • FIG. 9 shows a general sectional view of a fourth embodiment of the arrangement according to the invention.
  • FIGS. 1 and 2 show a first preferred embodiment of an arrangement according to the invention.
  • Reference numeral 1 in the FIGS. 1 and 2 indicates a metering piston positioned in a metering cylinder 2 formed in a frame.
  • the metering piston 1 is arranged to move axially in the metering cylinder 2.
  • Reference numeral 3 in the figures indicates a cylinder, in which is positioned a spindle 4.
  • the spindle 4 is provided with passages 5 remaining open during the whole pressurization.
  • the spindle 4 is arranged to move in the cylinder so as to permit flow of lubricant fed by a pump 6 of the lubricating system in a consequence of a movement of the spindle 4 either via a control valve to one side or the other of the metering piston 1 or, as in the FIGS. 1 and 2, directly to one side or the other of the metering piston 1, depending on dispenser.
  • the expression "depending on dispenser” signifies that the arrangement according to the invention can be connected to a conventional two-pipe system dispenser fully known in the field in such a way that the arrangement according to the FIGS. 1 and 2, for instance, feeds lubricant via the control valve in the dispenser into the metering cylinder of the dispenser.
  • the spindle 4 of the arrangement is arranged to move only by rotating around its longitudinal symmetry axis.
  • the rotary movement of the spindle 4 is arranged to be provided by a separate turning part 7 moving back and forth and rotating influenced by lubricant pressure and spring force.
  • the lubricant pressure is provided by the pump 6 and the spring force by a spring 8, respectively.
  • the arrangement according to the FIGS. 1 and 2 functions in principle in the following manner.
  • the lubricant pressure coming from the pump 6 moves the turning part 7 to the right against the force of the spring 8.
  • flow of lubricant is permitted through the passages of the spindle 4 and the surrounding frame to the left side of the metering piston 1, as shown in FIG. 1 by means of arrows.
  • the spindle remains accurately in its place at this stage. It shall be noted that these passages are entirely open during the whole time.
  • the metering piston 1 moves to the right, due to which the quantity of lubricant on the right side of the metering piston moves through the passages 5 of the spindle 4 directly to an object of lubrication VK2 or to a common object of lubrication Y.
  • the lubricant moving in the above manner is indicated by arrows in FIG. 1.
  • VK2 means in this connection naturally that a pipe is joined to that point, through which pipe lubricant is permitted to flow to the point of lubrication, e.g. to a bearing of a roll of a paper machine etc.
  • the separate turning part 7 propagates to the right by the length of a groove 9 guiding the part and a guide pin 10 supported on the groove.
  • the pressure of the system begins to drop and the turning part 7 starts moving to the left influenced by the spring 8.
  • the turning part When moving to the left, the turning part simultaneously rotates around its longitudinal symmetry axis due to the common effect of the groove 9 and the guide pin.
  • the turning part 7 When rotating in the above manner, the turning part 7 is arranged to grip with a counter-surface a pin 11 positioned at the spindle 4, whereby the spindle 4 rotates with the turning part during its return movement.
  • the spindle 4 can be arranged to turn for instance 90 degrees, the result being a situation according to FIG. 2.
  • a sliding contact between the spindle 4 and the turning part 7 is formed by means of a slot and a pin, due to which the turning part may slide axially away from the spindle influenced by the pressure and simultaneously rotate around the spindle during its return movement, as shown above.
  • a groove structure outside the spindle slides against the inside groove structure of the turning part of the spindle and permits an axial propagation of the turning part during pressurization and a rotation around the spindle during the return movement.
  • the turning part can be arranged to turn the spindle also during a movement caused by pressurization. This function is provided e.g. by forming the groove 9 and the pin 11 in such a way that the turning part rotates during said movement.
  • the turning part 7 moves to the right again and lubricant is permitted to flow through the passages of the spindle 4 to the right side of the metering piston, as shown by means of arrows in FIG. 2.
  • the quantity of flowing lubricant moves the metering piston 1 to the left, and therefore, lubricant moves from the left side of the piston through the passages to an object of lubrication VK1 or to the common object of lubrication Y.
  • the spring 8 presses the turning part back to the left, due to which the turning part turns the spindle 4 to a new starting situation, i.e. in this case to the situation of FIG. 1.
  • FIGS. 3 to 6 show a second preferred embodiment of the arrangement according to the invention. This embodiment differs from the embodiment of the FIGS. 1 and 2, as far as the implementation of the turning part is concerned.
  • the pin controlling the movement of the turning part extends through the turning part via a profiled opening made in the turning part.
  • the turning part is indicated in the embodiment according to the FIGS. 3 to 6 by reference numeral 17, the groove is indicated by reference numeral 19 and the guide pin by reference numeral 20.
  • the reference numerals used in the FIGS. 3 to 6 are identical to those used in the FIGS. 1 and 2.
  • FIGS. 3 to 6 functions in principle in the following manner.
  • lubricant begins to flow to the left side of the metering piston 1, due to which the metering piston pushes lubricant from its right side through the passages of the spindle 4 to the object of lubrication VK2 or to the common object of lubrication Y.
  • the lubricant flow is indicated by arrows in FIG. 3.
  • the turning part 17 With the pump operating and the pressure rising, the turning part 17 also begins to move to the right. Under common influence of the profiled form of the turning part 17 and the guide pin 20, the turning part 17 then turns in such a way that the turning part 17 is in its extreme position to the right when the pressurization has reached the state according to FIG. 4.
  • the turning part 17 begins to move to the left influenced by the spring 8, whereby the turning part, at the same time as it rotates under common influence of the guide pin 20 and the groove 19 provided with profiled form, grips the pin 11 joined to the spindle 4 and rotates around the spindle in the same way as described above in connection with the example of the FIGS. 1 and 2.
  • the turning part is arranged in an axial position with respect to the spindle 4, i.e. the turning part is arranged to form an extension of the spindle and additionally in such a way that the spindle and the turning part are in direct contact with each other during turning operation.
  • the spindle 4 can be made to turn by different mechanisms.
  • One alternative implementation is shown in FIG. 7.
  • the spindle 4 is turned by means of a cylinder element 27.
  • the force turning the spindle can be transmitted for instance by means of a crank mechanism 21.
  • a crank mechanism any other suitable mechanism can naturally be used, e.g. a gear rack principle 31 shown in FIG. 8, comprising gear rack parts 31a and a gearwheel part 31b.
  • the spindle 4 and the turning part rotating around the spindle can also be arranged at different levels. Such an arrangement is shown in FIG. 9.
  • the turning part is indicated by reference numeral 37.
  • the reference numerals used in FIG. 9 are identical to those in the examples of FIGS. 1 and 2.
  • the turning part 37 and the spindle 4 are joined together by a suitable transmission means 31, e.g. gearwheels, a chain, a cogged belt, a crank mechanism described in connection with FIG. 7, etc.
  • a suitable transmission means 31 e.g. gearwheels, a chain, a cogged belt, a crank mechanism described in connection with FIG. 7, etc.
  • the example of FIG. 9 corresponds essentially to the example of the FIGS. 3 to 6, for instance.
  • the above embodiments are by no means intended to restrict the invention, but the invention can be modified within the scope of the claims completely freely.
  • the embodiment according to the invention or its details do not necessarily need to be exactly such as illustrated in the figures, but solutions of some other kind are also possible.
  • the groove-pin-arrangement providing the rotation of the spindle can be realized in many different ways. For instance, a use of a fixed or spring-loaded pin, a pin provided with a ball-shaped end, a pin provided with a rounded end etc., a round-bottom groove, a groove provided with a spring means, a groove having a varying depth etc. is possible.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Reciprocating Pumps (AREA)
  • Measuring Volume Flow (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Coating Apparatus (AREA)
  • Transmission Devices (AREA)
US08/693,135 1994-02-14 1995-02-14 Apparatus for supplying lubricant alternatively to opposite sides of a lubricant dispenser metering piston Expired - Fee Related US5687815A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI940685A FI96539C (fi) 1994-02-14 1994-02-14 Sovitelma voiteluaineannostelijan yhteydessä
FI940685 1994-02-14
PCT/FI1995/000066 WO1995022031A1 (en) 1994-02-14 1995-02-14 Arrangement in connection with a lubricant dispenser

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US5687815A true US5687815A (en) 1997-11-18

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US08/693,135 Expired - Fee Related US5687815A (en) 1994-02-14 1995-02-14 Apparatus for supplying lubricant alternatively to opposite sides of a lubricant dispenser metering piston

Country Status (9)

Country Link
US (1) US5687815A (fi)
EP (1) EP0745204B1 (fi)
JP (1) JPH09508693A (fi)
AU (1) AU1708095A (fi)
BR (1) BR9506782A (fi)
DE (1) DE69513386T2 (fi)
ES (1) ES2139192T3 (fi)
FI (1) FI96539C (fi)
WO (1) WO1995022031A1 (fi)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004113849A1 (en) * 2003-06-19 2004-12-29 Laurence Richard Penn A metering device
WO2006003464A1 (en) * 2004-07-07 2006-01-12 Failsafe Metering International Limited A dispensing arrangement
US20090108028A1 (en) * 2007-10-26 2009-04-30 Duncan David F Apparatuses to deliver small amounts of fluids and methods of using the same
EP2163314A2 (en) * 2008-09-15 2010-03-17 Nordson Corporation Liquid material dispenser
US20100178000A1 (en) * 2007-06-14 2010-07-15 Lincoln Gmbh Device for supplying lubricant and bearing assembly therewith
US20100186838A1 (en) * 2009-01-28 2010-07-29 Aeromaster Innovations Inc. Alternating State Flow Valve
US20100206901A1 (en) * 2007-09-01 2010-08-19 Jost-Werke Gmbh Filling system for the metered delivery of a lubricant
US20100276011A1 (en) * 2009-01-28 2010-11-04 Spitzer Jeffrey J Alternating state flow valve
CN103883865A (zh) * 2014-04-04 2014-06-25 周一平 定量供液装置
WO2021018131A1 (zh) * 2019-07-30 2021-02-04 王定根 一种顺序供油装置及挖掘机全自动润滑剂注入装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102691873A (zh) * 2012-05-30 2012-09-26 张君 一种给油器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU340828A1 (ru) * Б. С. Шейнин Особое конструкторское бюро станкостроени Многоточечный маслораснределитель для дозированной смазки
US2126451A (en) * 1935-07-16 1938-08-09 Lubrication Corp Centralized lubrication system
US3172578A (en) * 1962-12-13 1965-03-09 Gilman Engineering & Mfg Co In Lubricant metering device
GB1570009A (en) * 1978-05-15 1980-06-25 Denco Farval Ltd Lubricating systems
US4632361A (en) * 1983-01-26 1986-12-30 Callison & Associates Limited Partnership Scheduled fluid control valve
US5147016A (en) * 1991-06-10 1992-09-15 Safematic Oy Lubricating grease doser arrangement with improved flow control, for preventing lubricant oil-hardener separation

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE147814C1 (fi) *

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU340828A1 (ru) * Б. С. Шейнин Особое конструкторское бюро станкостроени Многоточечный маслораснределитель для дозированной смазки
US2126451A (en) * 1935-07-16 1938-08-09 Lubrication Corp Centralized lubrication system
US3172578A (en) * 1962-12-13 1965-03-09 Gilman Engineering & Mfg Co In Lubricant metering device
GB1570009A (en) * 1978-05-15 1980-06-25 Denco Farval Ltd Lubricating systems
US4632361A (en) * 1983-01-26 1986-12-30 Callison & Associates Limited Partnership Scheduled fluid control valve
US5147016A (en) * 1991-06-10 1992-09-15 Safematic Oy Lubricating grease doser arrangement with improved flow control, for preventing lubricant oil-hardener separation

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100378440C (zh) * 2003-06-19 2008-04-02 劳仑斯·理查德·佩恩 计量装置
WO2004113849A1 (en) * 2003-06-19 2004-12-29 Laurence Richard Penn A metering device
WO2006003464A1 (en) * 2004-07-07 2006-01-12 Failsafe Metering International Limited A dispensing arrangement
US20100178000A1 (en) * 2007-06-14 2010-07-15 Lincoln Gmbh Device for supplying lubricant and bearing assembly therewith
US8701836B2 (en) * 2007-06-14 2014-04-22 Lincoln Gmbh Device for supplying lubricant and bearing assembly therewith
US8651339B2 (en) * 2007-09-01 2014-02-18 Jost-Werke Gmbh Filling system for the metered delivery of a lubricant
US20100206901A1 (en) * 2007-09-01 2010-08-19 Jost-Werke Gmbh Filling system for the metered delivery of a lubricant
US20090108028A1 (en) * 2007-10-26 2009-04-30 Duncan David F Apparatuses to deliver small amounts of fluids and methods of using the same
US20100065585A1 (en) * 2008-09-15 2010-03-18 Nordson Corporation Liquid material dispenser
EP2163314A3 (en) * 2008-09-15 2012-05-02 Nordson Corporation Liquid material dispenser
US8534505B2 (en) 2008-09-15 2013-09-17 Nordson Corporation Liquid material dispenser
EP2163314A2 (en) * 2008-09-15 2010-03-17 Nordson Corporation Liquid material dispenser
US20100186838A1 (en) * 2009-01-28 2010-07-29 Aeromaster Innovations Inc. Alternating State Flow Valve
US20100276011A1 (en) * 2009-01-28 2010-11-04 Spitzer Jeffrey J Alternating state flow valve
US8752582B2 (en) 2009-01-28 2014-06-17 Aeromaster Innovations, Inc. Alternative state flow valve
US9116522B2 (en) 2009-01-28 2015-08-25 Aeromaster Innovations, Inc. Alternating state flow valve
CN103883865A (zh) * 2014-04-04 2014-06-25 周一平 定量供液装置
WO2021018131A1 (zh) * 2019-07-30 2021-02-04 王定根 一种顺序供油装置及挖掘机全自动润滑剂注入装置

Also Published As

Publication number Publication date
AU1708095A (en) 1995-08-29
WO1995022031A1 (en) 1995-08-17
EP0745204B1 (en) 1999-11-17
FI940685A (fi) 1995-08-15
ES2139192T3 (es) 2000-02-01
DE69513386D1 (de) 1999-12-23
DE69513386T2 (de) 2000-05-11
FI940685A0 (fi) 1994-02-14
FI96539C (fi) 1996-07-10
EP0745204A1 (en) 1996-12-04
FI96539B (fi) 1996-03-29
BR9506782A (pt) 1997-10-14
JPH09508693A (ja) 1997-09-02

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